All entries for Friday 12 July 2019

AHDB Aphid News

The latest edition of AHDB Aphid Newshas been released for the week ending 7th July.

• Peach–potato aphid numbers have decreased to around 38% of the previous week's.
• Potato aphid numbers have also decreased to a third of previous week's.
• There was a hotspot of cabbage aphids at Writtle.
• Two currant–lettuce aphids were captured at York.
• Willow–carrot aphids decreased to just under half of those in the previous week.
• Pea aphid numbers halved compared with the previous week across much of Britain but rose at Dundee.
• Total numbers of black bean aphid have decreased to 44% of those in the previous week, with a substantial reduction inumbers at Wellesbourne and Starcross.

Rosemary Collier : 12 Jul 2019 19:31 |  Comments (0) |  Close comments |  Report a problem

Pest update from Wellesbourne

When the water traps in the swede plot were checked today there were:

• 139 male and 50 female cabbage root flies
• 50 bean seed flies
• 9 flea beetles
• 713 pollen beetles
• 51 cabbage stem weevils
• 2 cabbage stem flea beetles
• 1 cabbage seed weevil
  

There were 59 carrot flies on the 3 sticky traps in the new plot for 2019.

594 cabbage root fly eggs were laid between 9 and 12 July (around 15 plants).

1 diamond-back moth and 1 turnip moth were captured. No moths were captured in our other pheromone traps (silver Y moth, cabbage moth). There are 2 traps for each species.

We also caught 11 diamond-back moths on 5 carrot fly traps.

Rosemary Collier : 12 Jul 2019 15:14 |  Comments (0) |  Close comments |  Report a problem